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| author | Alex <kavsrf@gmail.com> | 2016-08-09 22:08:47 +0200 |
|---|---|---|
| committer | Mounir IDRASSI <mounir.idrassi@idrix.fr> | 2016-08-15 01:09:12 +0200 |
| commit | 246233c40262c5be2edfa916cf841dd4bce6598e (patch) | |
| tree | 75f17aeeb2aca66ac1cda709311ae710ae3d10d3 /src/Crypto/cpu.c | |
| parent | 58cff70724e9d90902a33b0718ccbe8ee4c7b329 (diff) | |
| download | VeraCrypt-246233c40262c5be2edfa916cf841dd4bce6598e.tar.gz VeraCrypt-246233c40262c5be2edfa916cf841dd4bce6598e.zip | |
Windows EFI Bootloader: modifications to prepare EFI system encryption support (common files with DcsBoot)
Diffstat (limited to 'src/Crypto/cpu.c')
| -rw-r--r-- | src/Crypto/cpu.c | 20 |
1 files changed, 13 insertions, 7 deletions
diff --git a/src/Crypto/cpu.c b/src/Crypto/cpu.c index 21c6c194..c358088d 100644 --- a/src/Crypto/cpu.c +++ b/src/Crypto/cpu.c @@ -60,8 +60,10 @@ static void SigIllHandlerSSE2(int p) int CpuId(uint32 input, uint32 output[4]) { #ifdef CRYPTOPP_MS_STYLE_INLINE_ASSEMBLY +#ifndef _UEFI __try { +#endif __asm { mov eax, input @@ -73,11 +75,13 @@ int CpuId(uint32 input, uint32 output[4]) mov [edi+8], ecx mov [edi+12], edx } - } - __except (EXCEPTION_EXECUTE_HANDLER) +#ifndef _UEFI + } + __except (EXCEPTION_EXECUTE_HANDLER) { return 0; } +#endif // function 0 returns the highest basic function understood in EAX if(input == 0) @@ -123,7 +127,7 @@ static int TrySSE2() { #if CRYPTOPP_BOOL_X64 return 1; -#elif defined(CRYPTOPP_MS_STYLE_INLINE_ASSEMBLY) +#elif defined(CRYPTOPP_MS_STYLE_INLINE_ASSEMBLY) && !defined(_UEFI) volatile int result = 1; #if defined (TC_WINDOWS_DRIVER) && !defined (_WIN64) KFLOATING_SAVE floatingPointState; @@ -150,7 +154,7 @@ static int TrySSE2() return 0; #endif return result; -#else +#elif !defined(_UEFI) // longjmp and clobber warnings. Volatile is required. // http://github.com/weidai11/cryptopp/issues/24 // http://stackoverflow.com/q/7721854 @@ -174,6 +178,8 @@ static int TrySSE2() signal(SIGILL, oldHandler); return result; +#else + return 1; #endif } @@ -198,7 +204,7 @@ VC_INLINE int IsAMD(const uint32 output[4]) (output[3] /*EDX*/ == 0x444D4163); } -#if (defined(__AES__) && defined(__PCLMUL__)) || defined(__INTEL_COMPILER) || CRYPTOPP_BOOL_AESNI_INTRINSICS_AVAILABLE +#if !defined (_UEFI) && ((defined(__AES__) && defined(__PCLMUL__)) || defined(__INTEL_COMPILER) || CRYPTOPP_BOOL_AESNI_INTRINSICS_AVAILABLE) static int TryAESNI () { @@ -289,7 +295,7 @@ void DetectX86Features() g_hasAESNI = g_hasSSE2 && (cpuid1[2] & (1<<25)); g_hasCLMUL = g_hasSSE2 && (cpuid1[2] & (1<<1)); -#if (defined(__AES__) && defined(__PCLMUL__)) || defined(__INTEL_COMPILER) || CRYPTOPP_BOOL_AESNI_INTRINSICS_AVAILABLE +#if !defined (_UEFI) && ((defined(__AES__) && defined(__PCLMUL__)) || defined(__INTEL_COMPILER) || CRYPTOPP_BOOL_AESNI_INTRINSICS_AVAILABLE) // Hypervisor = bit 31 of ECX of CPUID leaf 0x1 // reference: http://artemonsecurity.com/vmde.pdf if (!g_hasAESNI && (cpuid1[2] & (1<<31))) @@ -337,7 +343,7 @@ int is_aes_hw_cpu_supported () { if (cpuid[2] & (1<<25)) bHasAESNI = 1; -#if (defined(__AES__) && defined(__PCLMUL__)) || defined(__INTEL_COMPILER) || CRYPTOPP_BOOL_AESNI_INTRINSICS_AVAILABLE +#if !defined (_UEFI) && ((defined(__AES__) && defined(__PCLMUL__)) || defined(__INTEL_COMPILER) || CRYPTOPP_BOOL_AESNI_INTRINSICS_AVAILABLE) // Hypervisor = bit 31 of ECX of CPUID leaf 0x1 // reference: http://artemonsecurity.com/vmde.pdf if (!bHasAESNI && (cpuid[2] & (1<<31))) |